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The bioenergetic dysfunction in ASD focusing on free radicals

Research Project

Project/Area Number 19K21754
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 9:Education and related fields
Research InstitutionUniversity of Fukui

Principal Investigator

MATSUZAKI HIDEO  福井大学, 子どものこころの発達研究センター, 教授 (00334970)

Co-Investigator(Kenkyū-buntansha) 平山 暁  筑波技術大学, 保健科学部, 教授 (20323298)
Project Period (FY) 2019-06-28 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2020: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2019: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywords自閉症 / 酸化ストレス / 社会性 / フリーラジカル
Outline of Research at the Start

我々は酸化ストレスに焦点を絞ったASD臨床研究の過程で、フリーラジカル3種の消去活性測定が未就学ASD児童の早期診断に役立つ可能性を見出して特許を出願した(特開2018-033393)。本研究では視線計測装置(Gazefinder)や血清メタボローム解析、臍帯血出生コホートを導入して、この所見が真にASDの生物学的早期診断マーカーとなるかどうかを検証して、この所見の根底にあるエネルギー代謝異常の全容解明を目指す。本研究の手法でASD早期診断マーカーが確立できた場合、世界初の血液によるASD早期診断ツールの開発、予測に基づく早期介入が可能になる。ASD者の社会適応の促進が図られる点も有益である。

Outline of Final Research Achievements

We assessed oxidative stress alterations in autism spectrum disorder (ASD) by the MULTIS method, an electron spin resonance-based technique measuring multiple free radical scavenging activities simultaneously. Serum samples of 39 children with ASD and 58 age-matched children with typical development were analyzed.
The ASD group showed decreased hydroxyl radical and singlet oxygen scavenging activity with increased serum coenzyme Q10 oxidation rate, indicating a prooxidative tendency in ASD. By contrast, scavenging activities against superoxide and alkoxyl radical were increased in the ASD group suggesting antioxidative shifts. In the subgroup analysis of 6-year-olds or younger, the combination of hydroxyl radical, superoxide, and alkoxyl radical scavenging activities predicted ASD with high odds ratio, positive likelihood, and percentage of correct classification (87.0%). MULTIS measurements may serve as a very powerful non-behavioral tool for the diagnosis of ASD in children.

Academic Significance and Societal Importance of the Research Achievements

自閉スペクトラム症(ASD)は社会性・コミュニケーションの障害、興味対象の制限を臨床的特徴とする発達障害であるが、病態機序が不明で、ASDの早期診断に資するバイオマーカーは未だ存在しない(Uddin et al Transl Psychiatry 2017)。本研究で採用するフリーラジカル消去活性をふくむ多変量解析とコホートの組み合わせはASD研究の方法論としてこれまでに例がなく、この手法で特異度、敏感度、再現性の高いASD早期診断マーカーが確立できた場合、世界初の血液によるASD早期診断ツールの開発、予測に基づく早期介入が可能になる。ひいてはASD者の社会適応の促進につながる点も有益である。

Report

(3 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • Research Products

    (13 results)

All 2020 2019

All Journal Article (4 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (8 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] VLDL-specific increases of fatty acids in autism spectrum disorder correlate with social interaction.2020

    • Author(s)
      Usui N, Toyoshima M et al.
    • Journal Title

      EBioMedicine

      Volume: 58 Pages: 102917-102917

    • DOI

      10.1016/j.ebiom.2020.102917

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A potential role of fatty acid binding protein 4 in the pathophysiology of autism spectrum disorder.2020

    • Author(s)
      Maekawa M, Ohnishi T, Toyoshima M, Shimamoto-Mitsuyama C, Hamazaki K, Balan S, Wada Y, Esaki K, Takagai S, Tsuchiya KJ, Nakamura K, Iwata Y, Nara T, Iwayama Y, Toyota T, Nozaki Y, Ohba H, Watanabe A, Hisano Y, Matsuoka S, Tsujii M, Mori N, Matsuzaki H, Yoshikawa T.
    • Journal Title

      Brain Communication

      Volume: 2(2) Issue: 2

    • DOI

      10.1093/braincomms/fcaa145

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Increased plasma lipoprotein lipase activity in males with autism spectrum disorder.2020

    • Author(s)
      Hirai T, Usui N, Iwata K, Miyachi T, Tsuchiya KJ, Xie MJ, Nakamura K, Tsujii M, Sugiyama T, Matsuzaki H*.
    • Journal Title

      Research in Autism Spectrum Disorders

      Volume: 77 Pages: 101630-101630

    • DOI

      10.1016/j.rasd.2020.101630

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Simultaneous evaluation of antioxidative serum profiles facilitates the diagnostic screening of autism spectrum disorder in under-6-year-old children2020

    • Author(s)
      Hirayama Aki、Wakusawa Keisuke、Fujioka Toru、Iwata Keiko、Usui Noriyoshi、Kurita Daisuke、Kameno Yosuke、Wakuda Tomoyasu、Takagai Shu、Hirai Takaharu、Nara Takahiro、Ito Hiromu、Nagano Yumiko、Oowada Shigeru、Tsujii Masatsugu、Tsuchiya Kenji J.、Matsuzaki Hideo
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1 Pages: 20602-20602

    • DOI

      10.1038/s41598-020-77328-z

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] VLDL-specific increases of fatty acids in autism spectrum disorders correlate with social interaction.2020

    • Author(s)
      Matsuzaki H, Iwata K, Usui N.
    • Organizer
      第63回日本神経化学会、2020年9月10日、WEB開催
    • Related Report
      2020 Annual Research Report
  • [Presentation] 自閉スペクトラム症のエネルギー代謝異常の研究.2020

    • Author(s)
      松﨑秀夫
    • Organizer
      第11回自閉症学研究会、2021年1月24日、WEB開催
    • Related Report
      2020 Annual Research Report
  • [Presentation] 自閉症の科学2020

    • Author(s)
      松﨑秀夫
    • Organizer
      発達障害研究所セミナー
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 自閉スペクトラム症の酸化ストレス2019

    • Author(s)
      松﨑秀夫
    • Organizer
      シンポジウム4 自閉症学の魅力.第41回日本生物学的精神医学会
    • Related Report
      2019 Research-status Report
  • [Presentation] 自閉症の科学2019

    • Author(s)
      松﨑秀夫
    • Organizer
      名古屋市立大学医学部:医療・保健学びなおし講座
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] ミトコンドリアに着目した自閉症の診療技法の開発2019

    • Author(s)
      松﨑秀夫
    • Organizer
      第20回ORIGIN神経科学研究会
    • Related Report
      2019 Research-status Report
  • [Presentation] Measurement of Multiple Radical Scavenging Activity as a diagnostic method for autism spectrum disorder in children.2019

    • Author(s)
      Matsuzaki H, Hirayama A.
    • Organizer
      The 16th ASMRM and The 19th J-mit
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 自閉症エネルギー代謝異常の研究2019

    • Author(s)
      松﨑秀夫
    • Organizer
      第10回自閉症学研究会
    • Related Report
      2019 Research-status Report
  • [Patent(Industrial Property Rights)] 自閉症スペクトラム障害の判定方法、自閉症スペクトラム障害の判定用キット及び測定データ取得方法2019

    • Inventor(s)
      平山暁、松﨑秀夫
    • Industrial Property Rights Holder
      平山暁、松﨑秀夫
    • Industrial Property Rights Type
      特許
    • Filing Date
      2019
    • Acquisition Date
      2021
    • Related Report
      2020 Annual Research Report

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Published: 2019-07-04   Modified: 2022-01-27  

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